
VERTEX Piston Pro Version forged – Manufacturer ref. 22799A
Forged aluminium piston designed for motocross use. The VERTEX Pro Version comes in oversize "A" with a piston diameter of Ø 66.350 mm for a bore specified at 66.40 mm. Designed to replace the moving element of the engine group while maintaining a standard compression configuration, it fits into setups requiring this size.
This piston is intended for motocross machines, specifically for Kawasaki KX 250 models from 2002, 2003, and 2004 (KX250L / KX250M). It is suitable for rebuilds where oversize A is required and where a forged part is desired, frequently chosen by riders demanding durability and low rotational mass.
Before installation, check the condition of the cylinder and adhere to machining dimensions and manufacturer tolerances. Checking clearances, using a clean installation, and, in case of doubt, consulting a specialist will ensure reliable operation of the piston-cylinder assembly.




